715 lines
20 KiB
C
715 lines
20 KiB
C
/* GTK - The GIMP Toolkit
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*
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* Copyright (C) 2003 Ricardo Fernandez Pascual
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* Copyright (C) 2004 Paolo Borelli
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "gtkmenutoolbutton.h"
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#include "gtktogglebutton.h"
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#include "gtkarrow.h"
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#include "gtkhbox.h"
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#include "gtkvbox.h"
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#include "gtkmenu.h"
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#include "gtkmain.h"
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#include "gtksizerequest.h"
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#include "gtkbuildable.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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/**
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* SECTION:gtkmenutoolbutton
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* @Short_description: A GtkToolItem containing a button with an additional dropdown menu
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* @Title: GtkMenuToolButton
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* @See_also: #GtkToolbar, #GtkToolButton
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*
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* A #GtkMenuToolButton is a #GtkToolItem that contains a button and
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* a small additional button with an arrow. When clicked, the arrow
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* button pops up a dropdown menu.
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*
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* Use gtk_menu_tool_button_new() to create a new
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* #GtkMenuToolButton. Use gtk_menu_tool_button_new_from_stock() to
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* create a new #GtkMenuToolButton containing a stock item.
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*
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* <refsect2 id="GtkMenuToolButton-BUILDER-UI">
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* <title>GtkMenuToolButton as GtkBuildable</title>
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* <para>
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* The GtkMenuToolButton implementation of the GtkBuildable interface
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* supports adding a menu by specifying "menu" as the "type"
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* attribute of a <child> element.
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*
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* <example>
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* <title>A UI definition fragment with menus</title>
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* <programlisting><![CDATA[
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* <object class="GtkMenuToolButton">
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* <child type="menu">
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* <object class="GtkMenu"/>
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* </child>
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* </object>
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* ]]></programlisting>
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* </example>
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* </para>
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* </refsect2>
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*/
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struct _GtkMenuToolButtonPrivate
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{
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GtkWidget *button;
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GtkWidget *arrow;
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GtkWidget *arrow_button;
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GtkWidget *box;
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GtkMenu *menu;
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};
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static void gtk_menu_tool_button_destroy (GtkWidget *widget);
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static int menu_deactivate_cb (GtkMenuShell *menu_shell,
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GtkMenuToolButton *button);
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static void gtk_menu_tool_button_buildable_interface_init (GtkBuildableIface *iface);
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static void gtk_menu_tool_button_buildable_add_child (GtkBuildable *buildable,
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GtkBuilder *builder,
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GObject *child,
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const gchar *type);
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enum
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{
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SHOW_MENU,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_MENU
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};
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static gint signals[LAST_SIGNAL];
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static GtkBuildableIface *parent_buildable_iface;
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G_DEFINE_TYPE_WITH_CODE (GtkMenuToolButton, gtk_menu_tool_button, GTK_TYPE_TOOL_BUTTON,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_BUILDABLE,
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gtk_menu_tool_button_buildable_interface_init))
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static void
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gtk_menu_tool_button_construct_contents (GtkMenuToolButton *button)
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{
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GtkMenuToolButtonPrivate *priv = button->priv;
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GtkWidget *box;
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GtkWidget *parent;
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GtkOrientation orientation;
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orientation = gtk_tool_item_get_orientation (GTK_TOOL_ITEM (button));
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_DOWN, GTK_SHADOW_NONE);
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}
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else
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{
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box = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
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gtk_arrow_set (GTK_ARROW (priv->arrow), GTK_ARROW_RIGHT, GTK_SHADOW_NONE);
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}
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parent = gtk_widget_get_parent (priv->button);
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if (priv->button && parent)
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{
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g_object_ref (priv->button);
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gtk_container_remove (GTK_CONTAINER (parent),
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priv->button);
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gtk_container_add (GTK_CONTAINER (box), priv->button);
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g_object_unref (priv->button);
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}
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parent = gtk_widget_get_parent (priv->arrow_button);
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if (priv->arrow_button && parent)
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{
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g_object_ref (priv->arrow_button);
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gtk_container_remove (GTK_CONTAINER (parent),
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priv->arrow_button);
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gtk_box_pack_end (GTK_BOX (box), priv->arrow_button,
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FALSE, FALSE, 0);
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g_object_unref (priv->arrow_button);
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}
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if (priv->box)
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{
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gchar *tmp;
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/* Transfer a possible tooltip to the new box */
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g_object_get (priv->box, "tooltip-markup", &tmp, NULL);
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if (tmp)
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{
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g_object_set (box, "tooltip-markup", tmp, NULL);
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g_free (tmp);
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}
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/* Note: we are not destroying the button and the arrow_button
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* here because they were removed from their container above
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*/
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gtk_widget_destroy (priv->box);
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}
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priv->box = box;
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gtk_container_add (GTK_CONTAINER (button), priv->box);
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gtk_widget_show_all (priv->box);
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gtk_button_set_relief (GTK_BUTTON (priv->arrow_button),
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gtk_tool_item_get_relief_style (GTK_TOOL_ITEM (button)));
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gtk_widget_queue_resize (GTK_WIDGET (button));
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}
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static void
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gtk_menu_tool_button_toolbar_reconfigured (GtkToolItem *toolitem)
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{
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gtk_menu_tool_button_construct_contents (GTK_MENU_TOOL_BUTTON (toolitem));
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/* chain up */
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GTK_TOOL_ITEM_CLASS (gtk_menu_tool_button_parent_class)->toolbar_reconfigured (toolitem);
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}
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static void
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gtk_menu_tool_button_state_changed (GtkWidget *widget,
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GtkStateType previous_state)
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{
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GtkMenuToolButton *button = GTK_MENU_TOOL_BUTTON (widget);
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GtkMenuToolButtonPrivate *priv = button->priv;
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if (!gtk_widget_is_sensitive (widget) && priv->menu)
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{
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gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->menu));
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}
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}
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static void
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gtk_menu_tool_button_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuToolButton *button = GTK_MENU_TOOL_BUTTON (object);
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switch (prop_id)
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{
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case PROP_MENU:
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gtk_menu_tool_button_set_menu (button, g_value_get_object (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_menu_tool_button_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GtkMenuToolButton *button = GTK_MENU_TOOL_BUTTON (object);
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switch (prop_id)
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{
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case PROP_MENU:
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g_value_set_object (value, button->priv->menu);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gtk_menu_tool_button_class_init (GtkMenuToolButtonClass *klass)
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{
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GObjectClass *object_class;
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GtkWidgetClass *widget_class;
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GtkToolItemClass *toolitem_class;
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object_class = (GObjectClass *)klass;
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widget_class = (GtkWidgetClass *)klass;
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toolitem_class = (GtkToolItemClass *)klass;
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object_class->set_property = gtk_menu_tool_button_set_property;
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object_class->get_property = gtk_menu_tool_button_get_property;
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widget_class->destroy = gtk_menu_tool_button_destroy;
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widget_class->state_changed = gtk_menu_tool_button_state_changed;
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toolitem_class->toolbar_reconfigured = gtk_menu_tool_button_toolbar_reconfigured;
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/**
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* GtkMenuToolButton::show-menu:
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* @button: the object on which the signal is emitted
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*
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* The ::show-menu signal is emitted before the menu is shown.
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*
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* It can be used to populate the menu on demand, using
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* gtk_menu_tool_button_get_menu().
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* Note that even if you populate the menu dynamically in this way,
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* you must set an empty menu on the #GtkMenuToolButton beforehand,
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* since the arrow is made insensitive if the menu is not set.
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*/
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signals[SHOW_MENU] =
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g_signal_new (I_("show-menu"),
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G_OBJECT_CLASS_TYPE (klass),
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G_SIGNAL_RUN_FIRST,
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G_STRUCT_OFFSET (GtkMenuToolButtonClass, show_menu),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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g_object_class_install_property (object_class,
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PROP_MENU,
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g_param_spec_object ("menu",
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P_("Menu"),
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P_("The dropdown menu"),
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GTK_TYPE_MENU,
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GTK_PARAM_READWRITE));
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g_type_class_add_private (object_class, sizeof (GtkMenuToolButtonPrivate));
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}
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static void
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menu_position_func (GtkMenu *menu,
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int *x,
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int *y,
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gboolean *push_in,
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GtkMenuToolButton *button)
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{
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GtkMenuToolButtonPrivate *priv = button->priv;
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GtkAllocation arrow_allocation;
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GtkWidget *widget = GTK_WIDGET (button);
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GtkRequisition req;
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GtkRequisition menu_req;
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GtkOrientation orientation;
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GtkTextDirection direction;
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GdkRectangle monitor;
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gint monitor_num;
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GdkScreen *screen;
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GdkWindow *window;
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gtk_widget_get_preferred_size (GTK_WIDGET (priv->menu),
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&menu_req, NULL);
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orientation = gtk_tool_item_get_orientation (GTK_TOOL_ITEM (button));
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direction = gtk_widget_get_direction (widget);
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window = gtk_widget_get_window (widget);
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screen = gtk_widget_get_screen (GTK_WIDGET (menu));
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monitor_num = gdk_screen_get_monitor_at_window (screen, window);
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if (monitor_num < 0)
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monitor_num = 0;
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gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
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if (orientation == GTK_ORIENTATION_HORIZONTAL)
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{
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GtkAllocation allocation;
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gtk_widget_get_allocation (widget, &allocation);
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gtk_widget_get_allocation (priv->arrow_button, &arrow_allocation);
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gdk_window_get_origin (window, x, y);
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*x += allocation.x;
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*y += allocation.y;
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if (direction == GTK_TEXT_DIR_LTR)
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*x += MAX (allocation.width - menu_req.width, 0);
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else if (menu_req.width > allocation.width)
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*x -= menu_req.width - allocation.width;
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if ((*y + arrow_allocation.height + menu_req.height) <= monitor.y + monitor.height)
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*y += arrow_allocation.height;
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else if ((*y - menu_req.height) >= monitor.y)
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*y -= menu_req.height;
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else if (monitor.y + monitor.height - (*y + arrow_allocation.height) > *y)
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*y += arrow_allocation.height;
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else
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*y -= menu_req.height;
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}
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else
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{
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gdk_window_get_origin (gtk_button_get_event_window (GTK_BUTTON (priv->arrow_button)), x, y);
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gtk_widget_get_preferred_size (priv->arrow_button,
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&req, NULL);
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gtk_widget_get_allocation (priv->arrow_button, &arrow_allocation);
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if (direction == GTK_TEXT_DIR_LTR)
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*x += arrow_allocation.width;
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else
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*x -= menu_req.width;
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if (*y + menu_req.height > monitor.y + monitor.height &&
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*y + arrow_allocation.height - monitor.y > monitor.y + monitor.height - *y)
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*y += arrow_allocation.height - menu_req.height;
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}
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*push_in = FALSE;
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}
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static void
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popup_menu_under_arrow (GtkMenuToolButton *button,
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GdkEventButton *event)
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{
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GtkMenuToolButtonPrivate *priv = button->priv;
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g_signal_emit (button, signals[SHOW_MENU], 0);
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if (!priv->menu)
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return;
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gtk_menu_popup (priv->menu, NULL, NULL,
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(GtkMenuPositionFunc) menu_position_func,
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button,
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event ? event->button : 0,
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event ? event->time : gtk_get_current_event_time ());
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}
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static void
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arrow_button_toggled_cb (GtkToggleButton *togglebutton,
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GtkMenuToolButton *button)
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{
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GtkMenuToolButtonPrivate *priv = button->priv;
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if (!priv->menu)
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return;
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if (gtk_toggle_button_get_active (togglebutton) &&
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!gtk_widget_get_visible (GTK_WIDGET (priv->menu)))
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{
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/* we get here only when the menu is activated by a key
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* press, so that we can select the first menu item */
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popup_menu_under_arrow (button, NULL);
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gtk_menu_shell_select_first (GTK_MENU_SHELL (priv->menu), FALSE);
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}
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}
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static gboolean
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arrow_button_button_press_event_cb (GtkWidget *widget,
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GdkEventButton *event,
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GtkMenuToolButton *button)
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{
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if (event->button == 1)
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{
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popup_menu_under_arrow (button, event);
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gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (widget), TRUE);
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return TRUE;
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}
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else
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{
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return FALSE;
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}
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}
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static void
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gtk_menu_tool_button_init (GtkMenuToolButton *button)
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{
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GtkWidget *box;
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GtkWidget *arrow;
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GtkWidget *arrow_button;
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GtkWidget *real_button;
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button->priv = G_TYPE_INSTANCE_GET_PRIVATE (button,
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GTK_TYPE_MENU_TOOL_BUTTON,
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GtkMenuToolButtonPrivate);
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gtk_tool_item_set_homogeneous (GTK_TOOL_ITEM (button), FALSE);
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box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
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real_button = gtk_bin_get_child (GTK_BIN (button));
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g_object_ref (real_button);
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gtk_container_remove (GTK_CONTAINER (button), real_button);
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gtk_container_add (GTK_CONTAINER (box), real_button);
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g_object_unref (real_button);
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arrow_button = gtk_toggle_button_new ();
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arrow = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
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gtk_container_add (GTK_CONTAINER (arrow_button), arrow);
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gtk_box_pack_end (GTK_BOX (box), arrow_button,
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FALSE, FALSE, 0);
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/* the arrow button is insentive until we set a menu */
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gtk_widget_set_sensitive (arrow_button, FALSE);
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gtk_widget_show_all (box);
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gtk_container_add (GTK_CONTAINER (button), box);
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button->priv->button = real_button;
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button->priv->arrow = arrow;
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button->priv->arrow_button = arrow_button;
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button->priv->box = box;
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g_signal_connect (arrow_button, "toggled",
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G_CALLBACK (arrow_button_toggled_cb), button);
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g_signal_connect (arrow_button, "button-press-event",
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G_CALLBACK (arrow_button_button_press_event_cb), button);
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}
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static void
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gtk_menu_tool_button_destroy (GtkWidget *widget)
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{
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GtkMenuToolButton *button = GTK_MENU_TOOL_BUTTON (widget);
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if (button->priv->menu)
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{
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g_signal_handlers_disconnect_by_func (button->priv->menu,
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menu_deactivate_cb,
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button);
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gtk_menu_detach (button->priv->menu);
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g_signal_handlers_disconnect_by_func (button->priv->arrow_button,
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arrow_button_toggled_cb,
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button);
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g_signal_handlers_disconnect_by_func (button->priv->arrow_button,
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arrow_button_button_press_event_cb,
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button);
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}
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GTK_WIDGET_CLASS (gtk_menu_tool_button_parent_class)->destroy (widget);
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}
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static void
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gtk_menu_tool_button_buildable_add_child (GtkBuildable *buildable,
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GtkBuilder *builder,
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GObject *child,
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const gchar *type)
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{
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if (type && strcmp (type, "menu") == 0)
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gtk_menu_tool_button_set_menu (GTK_MENU_TOOL_BUTTON (buildable),
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GTK_WIDGET (child));
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else
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parent_buildable_iface->add_child (buildable, builder, child, type);
|
|
}
|
|
|
|
static void
|
|
gtk_menu_tool_button_buildable_interface_init (GtkBuildableIface *iface)
|
|
{
|
|
parent_buildable_iface = g_type_interface_peek_parent (iface);
|
|
iface->add_child = gtk_menu_tool_button_buildable_add_child;
|
|
}
|
|
|
|
/**
|
|
* gtk_menu_tool_button_new:
|
|
* @icon_widget: (allow-none): a widget that will be used as icon widget, or %NULL
|
|
* @label: (allow-none): a string that will be used as label, or %NULL
|
|
*
|
|
* Creates a new #GtkMenuToolButton using @icon_widget as icon and
|
|
* @label as label.
|
|
*
|
|
* Return value: the new #GtkMenuToolButton
|
|
*
|
|
* Since: 2.6
|
|
**/
|
|
GtkToolItem *
|
|
gtk_menu_tool_button_new (GtkWidget *icon_widget,
|
|
const gchar *label)
|
|
{
|
|
GtkMenuToolButton *button;
|
|
|
|
button = g_object_new (GTK_TYPE_MENU_TOOL_BUTTON, NULL);
|
|
|
|
if (label)
|
|
gtk_tool_button_set_label (GTK_TOOL_BUTTON (button), label);
|
|
|
|
if (icon_widget)
|
|
gtk_tool_button_set_icon_widget (GTK_TOOL_BUTTON (button), icon_widget);
|
|
|
|
return GTK_TOOL_ITEM (button);
|
|
}
|
|
|
|
/**
|
|
* gtk_menu_tool_button_new_from_stock:
|
|
* @stock_id: the name of a stock item
|
|
*
|
|
* Creates a new #GtkMenuToolButton.
|
|
* The new #GtkMenuToolButton will contain an icon and label from
|
|
* the stock item indicated by @stock_id.
|
|
*
|
|
* Return value: the new #GtkMenuToolButton
|
|
*
|
|
* Since: 2.6
|
|
**/
|
|
GtkToolItem *
|
|
gtk_menu_tool_button_new_from_stock (const gchar *stock_id)
|
|
{
|
|
GtkMenuToolButton *button;
|
|
|
|
g_return_val_if_fail (stock_id != NULL, NULL);
|
|
|
|
button = g_object_new (GTK_TYPE_MENU_TOOL_BUTTON,
|
|
"stock-id", stock_id,
|
|
NULL);
|
|
|
|
return GTK_TOOL_ITEM (button);
|
|
}
|
|
|
|
/* Callback for the "deactivate" signal on the pop-up menu.
|
|
* This is used so that we unset the state of the toggle button
|
|
* when the pop-up menu disappears.
|
|
*/
|
|
static int
|
|
menu_deactivate_cb (GtkMenuShell *menu_shell,
|
|
GtkMenuToolButton *button)
|
|
{
|
|
GtkMenuToolButtonPrivate *priv = button->priv;
|
|
|
|
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (priv->arrow_button), FALSE);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
menu_detacher (GtkWidget *widget,
|
|
GtkMenu *menu)
|
|
{
|
|
GtkMenuToolButtonPrivate *priv = GTK_MENU_TOOL_BUTTON (widget)->priv;
|
|
|
|
g_return_if_fail (priv->menu == menu);
|
|
|
|
priv->menu = NULL;
|
|
}
|
|
|
|
/**
|
|
* gtk_menu_tool_button_set_menu:
|
|
* @button: a #GtkMenuToolButton
|
|
* @menu: the #GtkMenu associated with #GtkMenuToolButton
|
|
*
|
|
* Sets the #GtkMenu that is popped up when the user clicks on the arrow.
|
|
* If @menu is NULL, the arrow button becomes insensitive.
|
|
*
|
|
* Since: 2.6
|
|
**/
|
|
void
|
|
gtk_menu_tool_button_set_menu (GtkMenuToolButton *button,
|
|
GtkWidget *menu)
|
|
{
|
|
GtkMenuToolButtonPrivate *priv;
|
|
|
|
g_return_if_fail (GTK_IS_MENU_TOOL_BUTTON (button));
|
|
g_return_if_fail (GTK_IS_MENU (menu) || menu == NULL);
|
|
|
|
priv = button->priv;
|
|
|
|
if (priv->menu != GTK_MENU (menu))
|
|
{
|
|
if (priv->menu && gtk_widget_get_visible (GTK_WIDGET (priv->menu)))
|
|
gtk_menu_shell_deactivate (GTK_MENU_SHELL (priv->menu));
|
|
|
|
if (priv->menu)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (priv->menu,
|
|
menu_deactivate_cb,
|
|
button);
|
|
gtk_menu_detach (priv->menu);
|
|
}
|
|
|
|
priv->menu = GTK_MENU (menu);
|
|
|
|
if (priv->menu)
|
|
{
|
|
gtk_menu_attach_to_widget (priv->menu, GTK_WIDGET (button),
|
|
menu_detacher);
|
|
|
|
gtk_widget_set_sensitive (priv->arrow_button, TRUE);
|
|
|
|
g_signal_connect (priv->menu, "deactivate",
|
|
G_CALLBACK (menu_deactivate_cb), button);
|
|
}
|
|
else
|
|
gtk_widget_set_sensitive (priv->arrow_button, FALSE);
|
|
}
|
|
|
|
g_object_notify (G_OBJECT (button), "menu");
|
|
}
|
|
|
|
/**
|
|
* gtk_menu_tool_button_get_menu:
|
|
* @button: a #GtkMenuToolButton
|
|
*
|
|
* Gets the #GtkMenu associated with #GtkMenuToolButton.
|
|
*
|
|
* Return value: (transfer none): the #GtkMenu associated
|
|
* with #GtkMenuToolButton
|
|
*
|
|
* Since: 2.6
|
|
**/
|
|
GtkWidget *
|
|
gtk_menu_tool_button_get_menu (GtkMenuToolButton *button)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_MENU_TOOL_BUTTON (button), NULL);
|
|
|
|
return GTK_WIDGET (button->priv->menu);
|
|
}
|
|
|
|
/**
|
|
* gtk_menu_tool_button_set_arrow_tooltip_text:
|
|
* @button: a #GtkMenuToolButton
|
|
* @text: text to be used as tooltip text for button's arrow button
|
|
*
|
|
* Sets the tooltip text to be used as tooltip for the arrow button which
|
|
* pops up the menu. See gtk_tool_item_set_tooltip_text() for setting a tooltip
|
|
* on the whole #GtkMenuToolButton.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
void
|
|
gtk_menu_tool_button_set_arrow_tooltip_text (GtkMenuToolButton *button,
|
|
const gchar *text)
|
|
{
|
|
g_return_if_fail (GTK_IS_MENU_TOOL_BUTTON (button));
|
|
|
|
gtk_widget_set_tooltip_text (button->priv->arrow_button, text);
|
|
}
|
|
|
|
/**
|
|
* gtk_menu_tool_button_set_arrow_tooltip_markup:
|
|
* @button: a #GtkMenuToolButton
|
|
* @markup: markup text to be used as tooltip text for button's arrow button
|
|
*
|
|
* Sets the tooltip markup text to be used as tooltip for the arrow button
|
|
* which pops up the menu. See gtk_tool_item_set_tooltip_text() for setting a
|
|
* tooltip on the whole #GtkMenuToolButton.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
void
|
|
gtk_menu_tool_button_set_arrow_tooltip_markup (GtkMenuToolButton *button,
|
|
const gchar *markup)
|
|
{
|
|
g_return_if_fail (GTK_IS_MENU_TOOL_BUTTON (button));
|
|
|
|
gtk_widget_set_tooltip_markup (button->priv->arrow_button, markup);
|
|
}
|